I don't think the tzar350 sounds anything similar to the er4-s. Way, way too much treble on the 350. Conversely, the 4.ai was way too warm.

To me the Ety's are not bright iems in treble. However they are very clear and have edge due to the upper mid peak, between 2k and 4k, they tune to compensate for being in ear, versus over the ear.

So it sounds like the noble 6 most likely doesn't have the upper mid presence of the ety. I'd like to hear a comparison of the noble 4 from a die hard ety fan, as I'd love to find an ER-4s replacement In a comfortable form factor.

My first serious IEM love was the Etymotic HF2. As good as it is the N4 is simply better; it's more detailed with greater extension and an effortless sound. The upper mids are a little less warm than the HF2's so you'll give that up for greater clarity and technical ability. You'll also get a far larger sound stage. For me the HF2 was intimate and never created even the semblance of dimensionality, the N4 does.

I've had the N4 for close to a week now.. I've done lots of listening w/ it..and I can't tell you guys just how impressed I am with the sound. My ears are getting more accustomed to the universal fit. In a nutshell.. it sounds like how I wished the RE272 sounded.

I've been comparing it with the UERM and have a very clear idea of where these two phones differentiate themselves.. I'll post more about that in a bit.

I haven't been keeping up but that's the universal right? Either way impressions against the uerm is definitely something I want to hear.

It seems I'll get to demo a noble 4 soon but loaning my ER-4s out first. IMO, the ER-4s gives up nothing in SQ or detail to any of the 100+ iems I've heard, custom or universal, especially with red filters versus stock green. I just want the same sound with an easier, better long listening session fit.

Still here on the fence hoping someone who has received the 3,4 or 5 can run this sweep and let me know if the frequency nulls from previous designs are gone. Or maybe someone from Noble can tell me if the measured narrow band scoop in the Heir 3/4 were corrected on the Heir side prior to the split?

Still here on the fence hoping someone who has received the 3,4 or 5 can run this sweep and let me know if the frequency nulls from previous designs are gone. Or maybe someone from Noble can tell me if the measured narrow band scoop in the Heir 3/4 were corrected on the Heir side prior to the split?

Hi, the Noble 4 has definitely and completely corrected the dip from the earlier design.

The Noble 3 is a completely new design with new drivers--so yes, it's a whole new earphone.

After reading your post, I decided to do a direct comparison with my Ety ER4S and the Noble 6 (prototype). I have owned the ER4S's since the early 90's.

Yes, if you love the Ety ER4 sound, then I can see where you are coming from, but I have to say I feel that the 6's are SO much better to me. Yes the ER-4s have a lot more high end frequency response. It sounds like an EQ has been applied with everything over 10kHz turned up 5dB compared to the Noble 6's. It reminds me of the Sennheiser HD800 compared to say the LCD-3's. But with the ER4's, it also sounds like it has been EQ'd with everything under 4kHz turned down about 10dB or more! When I first put in the ER4's, they sounded great. No bass to speak of, but still sounded great. Then I put in the Noble 6's and what a world of difference. The detail and the highs were still there, not as high as the ER4's. But, the mid and lows just have so much more body and "meat" to them. Going back to the Ety's, the ER4's just sounded like listening to a three way speaker with the mid and woofer disconnected.

I think the LCD-3 to HD800 comparison is good. The Noble 6's don't lack any detail or air or space at all compared to the ER4's. But the difference in low mid and bass is so significant, that I can't listen to the Ety's after listening to the Noble 6's.

However, with all that said, I think you might like the Noble 4's better. They are closer to the ER4 sound signature, but with more mid and bass than the ER4's. To me the N4's are like ER4's with more bass. Not a lot of bass by any stretch, but just what the ER4's should have.

I am sure you won't have any problem finding a buyer for those N6's. To me they are amazing.

My ER4P's have been my go to IEMs for over a decade. I swung by the Etymotic offices in 2003 after work and they let me demo them. I fell in love. I use them primarily when traveling so conservatively I have put in over 5,000 hours listening to them. They are probably why I am still sane today. However. I have to agree with darinf that when compared to my new N6s they sound like only a third of the musical dynamics are coming through with the ER4s. I only wish the ER4s had more base and a bit more mids. Unfortunately, the are now relegated to my listening time when I am in the air due to their fantastic isolation. For the majority of my listening it's either my over ear or my N6's.

My ER4P's have been my go to IEMs for over a decade. I swung by the Etymotic offices in 2003 after work and they let me demo them. I fell in love. I use them primarily when traveling so conservatively I have put in over 5,000 hours listening to them. They are probably why I am still sane today. However. I have to agree with darinf that when compared to my new N6s they sound like only a third of the musical dynamics are coming through with the ER4s. I only wish the ER4s had more base and a bit more mids. Unfortunately, the are now relegated to my listening time when I am in the air due to their fantastic isolation. For the majority of my listening it's either my over ear or my N6's.

Good news everyone! My Noble 4 universals was delivered today, and my very initial impressions are good. Actually, they are quite what i was hoping for in terms of sound. Good clarity, sparkling highs, slightly forward mids and a great low end, with a pretty good punch. I must say that i am a little surprised by the highs. They definately have more in common with the tzar350, than they have with the 4.Ai. Perhaps it is the best of both world, but it is a little too early to draw any conclusions yet.

I have only had limited time with the 350s, but their clarity and details are just stunning. The highs can be incredible sibilant at times, but with the right recording, the 350s are a truly amazing set of IEMs. Because of the occational sibiliance though, i would never be able to use them as my only pair of IEMs, and since i am on a budget here, having two expensive sets of IEMs just is not an option.

I would very much like to do som comparisons between the Noble 4 and the Heir Tzar350 (and the 4.Ai for that matter) in the near future. Luckily, that can be arranged.

I'm just so amazed by the newly received k10.
The finishing is just astonishing. Fitting need to be determine since its my first time wearing ciem. But the sealing is good if i click in a right position.
Extraordinary bass, sweet mids and silky smmoth well extended high.
There is no way to complain any area of this piece of art. Nice work Wizard. Good job Noble Audio.

My ASG-2 came back this morning. I was asked for some size comparisons between the N6 and G2, so I took some pictures:

As you can see, the ASG-2 is slightly tubbier than the Noble 6. But, the G2 is more ergonomic and fits better in the ear. Pay close attention to the angling of the nozzles, where the N6's is perpendicular to the IEM body while the G2's follows the curvature of the ear.

Now that the ASG-2 is back, I can start on the full review of the Noble 6 while I wait for the Earsonics S-EM6 to also arrive.